Comparison

GSDSP Quantum Delay vs KA mini DiZi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GSDSP Quantum Delay

This app offers a vintage-inspired stereo delay effect with advanced modulation, flexible filtering, and precise timing controls. It allows users to sculpt unique echo textures, from warm analog sounds to complex, evolving soundscapes.

Highlights
  • Vintage-inspired stereo delay
  • Deep modulation system
  • Flexible filtering (LPF, HPF, BPF)
  • Precise timing controls (BPM, ms)
  • Switchable stereo/dual mono modes
  • Advanced modulation sources (LFO, Random, Envelope)
Features
Read full description

A vintage-inspired delay supercharged with deep modulation, flexible filtering, and creative timing that pushes echoes into new dimensions. Classic Delay, Reinvented Quantum Delay takes the charm of a vintage stereo delay and fuses it with our next-level modulation system. Switch between the warm character of Tape mode and the pristine clarity of Fade mode, lock to BPM (including 5-tuplets) or dial in precise times in milliseconds. Use the Fine control for subtle push-and-pull micro-timing — or modulate your delay lines in ways traditional delays could only dream of. Sculpted Echoes Shape your repeats with switchable lowpass, highpass, and bandpass filters placed directly in the feedback path. Add modulation to create evolving tones, gentle movement, or drifting, frequency-shifting echoes. From warm analog-style rolls to shimmering, swirling textures, it’s all there. Feedback with Precision Control your delay tail behavior using either traditional % feedback or our modern dB-per-second decay system — ideal for predictable, musical decay even when the feedback path becomes complex. Enable Crossfeed for classic ping-pong stereo bounce, or push into Over-Feedback to create dense, self-building echoes that drift toward infinity. Stereo or Dual Mono Every section of Quantum Delay — delay, filter, and feedback — can switch between stereo and dual mono modes. Create tight, controlled stereo images or break them apart for wide, offset, unpredictable spaces. Dual mono modulation unlocks complex stereo interplay and beautifully asymmetric echoes. Modulation Without Limits Quantum Delay integrates our advanced modulation system, letting you modulate nearly anything: delay time, filters, feedback parameters, stereo controls, and more. Use LFOs, Random Generators, 2D modulators, Envelope Followers, Macros, and even chaotic systems to push your echoes far beyond traditional delay behavior. Or use our parameter randomisation feature to explore the plugin’s sound at random. Quantum Delay is an AUv3 audio effect plugin compatible with Logic Pro, AUM, Cubasis, GarageBand and many more. A Desktop version is also available for Windows and macOS (VST3 / AU / AAX). More information here: https://gs-dsp.com/products

About

KA mini DiZi

This app offers a virtual Chinese DiZi instrument with a minimalist design. It provides a high-quality sound experience for electric wind instrument and MIDI keyboard users through simple UI controls. It functions as both a standalone app and an AUv3 plugin.

Highlights
  • Virtual Chinese DiZi instrument
  • Minimalist UI design
  • High-quality sound experience
  • AUv3 plugin support
  • Standalone app functionality
Features
Read full description

Kong Audio mini DiZi is a minimally-designed virtual instrument of Chinese DiZi. It gives electric wind instrument and midi keyboard user a high-quality experience with very simple UI controls. KA mini DiZi can run as an app or AUv3 plugin.

Screenshots

GSDSP Quantum Delay3 screens
KA mini DiZi2 screens

Verdict

The call

The clearest difference is price: KA mini DiZi at $1.99 against GSDSP Quantum Delay's $14.99. KA mini DiZi also leads on update cadence (every 4 days vs every 5 weeks) and rating (5.0 vs 4.8). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

GSDSP Quantum Delay costs $14.99 and KA mini DiZi $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

KA mini DiZi holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 17 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

GSDSP Quantum Delay ships an update every 5 weeks, KA mini DiZi every 4 days. The most recent releases landed on September 22, 2026 and August 15, 2026 respectively.

Scorecard3 real differences · 7 level
GSDSP Quantum Delay versus KA mini DiZi: the parameters behind the verdict, then further details
ParameterGSDSP Quantum DelayKA mini DiZi
Price$14.99$1.99 — better
Rating4.8 (17 ratings)5.0 (6 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings17 — better6
Update frequencyEvery 5 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size94 MB27 MB
Age rating4+4+
DeveloperGustav ScholdaSHANTOU KONG AUDIO SOFTWARE TECHNOLOGY CO.,LTD.

Customer experience

GSDSP Quantum Delay

All ratings17 ratings
Positive94.1%
Neutral0.0%
Negative5.9%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

KA mini DiZi

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

GSDSP Quantum Delay

No in-app purchases

None

KA mini DiZi

No in-app purchases

Questions

Is GSDSP Quantum Delay free?
GSDSP Quantum Delay costs $14.99, with no in-app purchases.
Is KA mini DiZi free?
KA mini DiZi costs $1.99, with no in-app purchases.
Which has better reviews, GSDSP Quantum Delay or KA mini DiZi?
KA mini DiZi is rated higher. GSDSP Quantum Delay averages 4.8 out of 5 from 17 ratings, while KA mini DiZi averages 5.0 from 6 ratings.
Do GSDSP Quantum Delay or KA mini DiZi have ads?
Neither GSDSP Quantum Delay nor KA mini DiZi shows ads.
Which is updated more often, GSDSP Quantum Delay or KA mini DiZi?
GSDSP Quantum Delay ships an update every 5 weeks, and KA mini DiZi every 4 days. Most recently, GSDSP Quantum Delay was updated on September 22, 2026 and KA mini DiZi on August 15, 2026.

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